This engine came in SOHC in vtec and non vtec, there is also a DOHC VTEC version of the engine, they all share the same engine code although they are very different.
DOHC VTEC Manual Version:
197 HP @ 7200RPM
145 TQ @ 6600RPM
11.0:1 CR
85mm bore
88mm stroke
23mm wrist pin
145.5mm rods (f20b rod length = 145.425)
1.65 r/s ratio
55mm mains like h22a4 block
rod journal has been offset ground on both sides to the size of a b-series rod journal.

F20Z

This engine series is similar to the F20A above, used in the Honda Accord in Asia and Europe.
Specifications
Bore × Stroke: 85.0 × 88.0 mm
Displacement: 1997 cc
Valve Configuration: SOHC, 16 valves

Max power:
F22A1: 125 hp (93.21 4 kW) @ 5200 rpm. NOTE* The 1992-1996 Prelude S had a F22A1 but because of a different more aggressively tuned ECU (P12), the power output was 135 hp (101 kW).

F22A4: 130 hp (96.94 kW) @ 5200 rpm. The F22A4 is the same motor as the F22A1 but it has slightly more power due to a tubular designed header and slightly bigger exhaust piping.

F22A6: 140 hp (104.40 kW) @ 5600 rpm. The F22A6 is the same as the F22A1 except for a slightly more aggressive camshaft, a better flowing cast exhaust manifold, a different more aggressively tuned ECU (PT6), and a different intake manifold that utilizes IAB's and also has a bigger plenum. The F22A6 also has a windage tray in the oil pan, and stiffer valve springs to accommodate the more aggressive camshaft.

Main article: Honda F20C engine
This engine was a radical departure from previous F engines, and only shared basic dimensions such as bore spacing. It was designed specifically for the Honda S2000 and shares some engineering with the Honda K engine. A long-stroke F22C1 variant was also produced.

The H22A debuted in 1993 for use in the Honda Prelude VTEC as the H22A1. Versions of the H22A would be the Prelude's signature high-performance engine worldwide until the end of Prelude production in 2001. It was also used in the 1994–1997 Honda Accord SiR and 1998–2003 Honda Accord Euro-R in Japan and Accord Type-R in the UK and Europe (however different camshafts and a different intake manifold were used in the Euro R H22A). The H22A in the Prelude Type-S, CH6 Type-R and CL1 Euro-R came with the trademark red crinkle finish valve cover. It is known that Honda in accordance with Hondata and Mugen specially designed a H22A1 engined destroked to 2.0 liters in order to meet standards for the Bonneville Flats race, this engine achieved an acclaimed top 1,543 wheel horsepower in a Dynojet.

The H22A4 is the designation of the engine used in the Base and Type-SH 97-01 Honda Prelude.
This engine was the only engine released in the US model Preludes, and these are designated with the "black and red tops". It produces 195 PS (192 hp/143 kW) in 97-98 or 200 PS (197 hp/147 kW) in 99-01 models.

H22A5

The H22A5 could be found in 1997-1999 European Prelude VTi with "black top" and only 185 bhp (138 kW)

H22A7

The H22A7 could be found in 98-02 European Accord Type-R with 212 bhp (158 kW) DIN.

H22A8
This motor was only released within the 2000-2001 European versions of the Prelude and can be designated with the "red tops" and 200 horsepower (150 kW)

H22Z1

This is identical to the H22A1 found in AUDM VTiR and VTiR ATTS, but with an alternatively stamped block. All post '99 Preludes
received this block. There is also speculation that power was increased to 149 kW (200 bhp) (from 147 kW (197 bhp)).